Home › CFR › Title 10 › Part 46010 CFR Part 460 — Energy Conservation Standards for Manufactured HomesSubpart A — General§ 460.1— Scope.§ 460.2— Definitions.§ 460.3— Materials incorporated by reference.§ 460.4— Energy conservation standards.Subpart B — Building Thermal Envelope§ 460.101— Climate zones.§ 460.102— Building thermal envelope requirements.§ 460.103— Installation of insulation.§ 460.104— Building thermal envelope air leakage.Subpart C — HVAC, Service Hot Water, and Equipment Sizing§ 460.201— Duct system.§ 460.202— Thermostats and controls.§ 460.203— Service hot water.§ 460.204— Mechanical ventilation fan efficacy.§ 460.205— Equipment sizing.